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WHICH SIZE TO USE?

You are here: Home»WHICH SIZE TO USE?

What size Hood Louvers do we recommend for your vehicle? Bob always says “Use the largest size your hood can handle!”

Number of cylinders in your engine? Engine hopped up? Turbocharged or supercharged?

What state are you in – hot summers?

Any off-roading? Any towing? Many hills to pull?

Size Large Hood Louvers Give You 60% More Surface Area of Openings vs Size Medium, But Cost Only 30% More!

Hi-Flow Hood Louvers Give You 50% More Louvered Openings Per Same-Size Panel Than Regular Flow, But Cost Only 20% More!

 

Download Our Hood Louver Selection Guide by Clicking Here

Download Our Summary Size – Data Sheet by Clicking Here

 

Eco Friendly

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The Run Cool Blog

Heat Rises!!

Air flow through and out of the hot engine compartment is what these real Hood Louvers are about! Note the air flow, as seen by the movement of the tissue paper. This is due to a combination of rising heat and the forced air flow by the engine cooling fan (at 1500 rpms). The “ram air” effect of the air being forced through the engine compartment and out of the Louvers, as the vehicle moves forward, would add to the air flow through the Louvers.

NOAA

WASHINGTON - FEDERAL SCIENTISTS SAY JULY 2012 WAS THE HOTTEST MONTH EVER RECORDED IN THE LOWER 48 STATES.
Designed with the help of a NASA Wind Tunnel Engineer to maximize hot air flow out of the engine compartment! As developed, tested and used in the desert on many U.S. Border Patrol vehicles!

MADE IN USA
You've heard of Intercoolers...well, these are Outercoolers™!

Hood Louver Guarantee

We GUARANTEE Hood Louvers to Fit Any Car, Truck, or S.U.V.* in the WORLD - - Or We Pay You $100!!!
* Must be street-licensed and driven by you (no miniatures/toy models, etc., please!). We might need photos of the hood to recommend the best choice(s).